Machine for forming metal bodies.



C. F. SC'HULTIS.

MACHINE EUR FORNHNG METAL BODIES.

APPLICATION man DEc.2.1915.

Patented Apr. 29, 1919.

ITT!

,Ill

MM, f

um.. n

4. V du "wx, n.5 D f um L H. w

J om

NUE/72W- l 9mm AJM@ El?? 3m, Mw

C. F. SCHULTIS.

MACHWE FOH Fonmm METAL BODIES.

APPLICATION FILED DEC,2,1915.

Ill w lll El' I r "y" bf- M@ Lef C. F. SCHULTIS.

MACHINE FOR Eomvuw METAL BODIES,

APPLICATION FILED DEC,2 IBIS.

LBQQ, Patented Apr. 29, 1919.

5 SHEETS-SHEET 3f nnuwiEimw many]- /Qgm QI. WMW

E277 m/MM MMF C. F. SCHULT MAcHxNE FOR FORMING METAL BODIES.

APPLICATION FILED DEC\2.19}5.

5 SHEETS-SHEET 4.

Pammd Apr. 29, 1919,

mfg/'z TUF ibm?, Smm

lll

rracnrnn Application fled lilecenilcer 93, Milt.

To all whom t may concern Pie it known that l., Cnannne ld". Scimmie? acitizen ot the United States, residing1 at Cleveland, in the county ofCuyahoga and State ot @hic9 have invented a certain new and nsetnlllmproreinent in lwlachines tor Forming lli/letal Bodies, ot which thefollow ing" is a full, clear, and exact description, reference being hadto the accennoanying7 drawing.

'lfhis invention relates to machines tor 'forming metal bodies, theinvention being especially suitable for einhodinientin a springeaniloering machine. Because o its peculiar adaptability to this classof niacliines` the same will he shown and described herein in suchconnection. lt will be understood, however, that l do not liinit theinvention to the details oi" construction shown herein, which l haveselected merely as illustrative ot one embodiment ot' my invention, norits use to that oi a spring carnber-l ing machine, except as required bythe terms of the annexed claims.

The principal objects of the invention are to provide a machine of theaforesaid clase which may be conveniently operated by one attendant;Which is nractically continuons in its operation or forming metalbodies9` such a springs; and which is practicallgir automa-tic in itsoperation, after a. piece of worlr has heen placed in the machine andattendant has set the saine in operationy the machine thereafter actingto :torni the metal loody and deliver it from the machine, coraplete inso liar as the iforming; operation. is concerned.

i :further object ie to provideD in ina chine oit this nature, arotatable table har-- ingu a plurality ont ohjectecnportineg*tacco orportione and a reciprocat g head that ie arranged to cooperate with the:tacos or ipertions. and wherein the reciprocation ot the head rotatesthe table to present the tf: "ions of the tahle eacccssivelgi intooperative relation to head..v

Further objects are t `prot/'ide with n eane tor clamping o@ twertig-erinnern'. e po 'ons cii `which clamping; d

fum. W- ette liuc THT W@ @fr onto, erannnnn peeicetion er lettersPatent.

Serial 64,6%.

Wm C) icee at a givenphase in the rotation.

able; and to provide an ejecting appara or conveyor tor reinoif'ingg theornied olen jects from the niachinef. which ejecting ap garatus orconreyer is preferably actuated h5' the rotation ot the talole. l

A flirt-lier object coinprehended hy my i rention is the production of ateinplet'tln is inadc up ot a tleatilole member, the conu tour ot' whichmay he altered at will, and a. series ot' interchangeable bearinghloclre tor attachment thereto. ln the caee ot' termine* longitudinalbodies, such as vehicle oprings1 the aforesaid hearing; blocks arenrorideil with extensions for engagement with the lateral edges of thebodya thc-reinv to straighten the saine in one plane rmile imparting* tothe desired Shape in a plane at sulostantiall)T right `angles to the'former plane.

llith the foregoing' objects in riem and others Whichwill becomeapparent aa thie i deecription proceeds` the invention may oc defined asconsistingy of the combinations o' elements forth in the clainns` annehereto5 and illustrated in the accoinpan drawings, 'forming a p hereoi".

ln the drawings, n 'l rep sectional 'front elevation oit' a sari` 'mhering` and tempering inachinc coi in accordance with my invent a letthand sectional side elcv machine; 3 is a tragic hand end elevationthereof, ce of the machine being" hrolren for i eet constituting themechan.H

operating the clamping' dericcic the vi s including? the actuatingnienihcr Winch carried hy! the head otI the mach, 5e: a sectioned detailon thc line and loo lill -l4`ig. i is a View similar to Fig. 6, hutshort ing the parts in the position they occupy 1n Fig. 5; Fig. 8 is asection on the line of Fig. l and lookingin the direction ot the arrows;Fig. 9 is a sectional detail on the line 9--9 ot lTigL 8; Fig. l0 is adetail in perspective ol" one ol the clamping devices; ligs. ll and l2are a front elevation, partly in section, and a plan, respectively, otone of the adjustable templets; Fig'. 13 is a lett hand end elevation oithe templet, as viewed in Fig. ll.; Fig. l is a central, verticalsection of the teniplet, taken on the line lll-lll; of il and l2,looking toward the right; Fig. l5 is a perspective. view ot one type ot'bearing block used in the formation ot the adjustable templet; Fig. lois a similar View ot another forni oit hearing lolocl having extensionstor engaging the lateral edges el" the Work and straightening the saine;and lfig. 17 is a irejuientary longitudinal section through the'teniplet Taking up a detailed description et' the invention h v the useoi reference Characters, il. represents a tanli that is substantiallyrectangular in plan and having a rearward extension il". The bottoniWall (L oit the eirtension is inclined upwardly from ifront to rear,Where .it joins a shalloav vertical wall ai".

ldlithin cach end of the tank il there is a. traine l, having' i hase 2,and which may be secured to the end wall of the tank in any si'litahlenianner, as hy nieans ot' rivets 3. The upper ends of the .trmie l areconnected hy a substantial beam 5, each end oi the heard being connectedto the adjacent frame by a holt il. Supported h v the lieam 5, andspaced inward trein. each end thereof, is a post l .7., the lower end oteach post being shown in dotted line in Fin: `l. as reduced at 8, andhavingr a nut t) applied to it, where it projects helow the heain o.l7lang'es l0 are carried hv the upper ends ot the posts. and lo theseYl'lanzeges secured. :is hir holt@ ll, a top plate 'W'. lt will he seenupon reid?rrinigl to liir and 2li, that the upper end ol'I the rear e?ension il ot the lanlr is .suijiported 'upon ledges 11i ot standards 16.rllllie upper portion of the trame worlr coniprisinn the :oiegoing partsl to if? is braced hy stringere li" which are fastened at their lovverends to the standards 'iti and at their upper ids hv means oft' angleclips #i and bolts it) to the top plate l2.

,thispended troni the central portion otn the top plate and secuiedthereto h v loolti:4 is a pressure Vliuid c vlinder ill. 'llhis whndercontains a piston the rod 23 ivliircof ""*ends througli a paclrii rgland ii l cjvlinder head ill and has secu; -o i u' end a llau liiti'iuir 25h'.

Til' l' ha` reterred to hereiolieiore as the head of 'incufhine is shownat and this head is iiggidl)7 secured to the ht ting 25. Near each otits ends, the head 26 is provided with a sleeve Q7 that is reciprocahleupon one of the posts 7.

l have already referred to the pressure tluid c vlinder 2l. As steam isfound a suitable medium for operating my machine, steam is referred toas the pressure fluid throughout the following description, although itwill be understood that this does not limit the invention to the use ofthis particular operating tluid. l have shown more or lessconventionally, the cylinder 2l as provided with a steam chest 30 Withinwhich there housed a sliding -valve 3l that is adapted to he operated bymeans ot a rod 32, having an operating handle 33 at its lower end. lherod is guided through a iuaeket 3l that is carried ley the right handpost i', and below this bracket. a stop 255 is .secured to the rod. Asecond loraclret 3G is supported b v and extends in suhstan tiallv thesaine direction as the bracket 3l from the aforesaid post 7, the latterliraclret terminating adjacent the piston rod 23, and having pivoted toits end, a rocker arui 37. il linger 38, adapted .tor cooperation withthe lett hand end ot the rocker arno 37, is necured to the pistonrodahove the rocker arin. The opposite end of the rocker arni is adaptedfor cooperation with the. stop the movement of the rocker arm h v thestop 35 being' limited by a stationary stop 39, that is Carried by thebracket 36. Steam may he introduced into the steam chest 30 through asupply pipe 40, the steam having access to the lower portion of thecylinder through a. port l1, and tothe upper portion thereof through aport 42. lin el@ haust port 43 communicates with the steam chest withinthe contines ot the lil-valve 3l.

From the above description it will he seen that. When Vthe operatordesires to depress the head ot the machine, he may grasp the operating'handle 33 and pull downward on lovi'est position when the stop 35 willhe in engagement with the right hand end et the roel-1er arni 37. llyreason of the position thus griven the lid-valve 3l, steam may headi'niitted troni the steani chest through the port 4:2, to the upperend ofthe cylinder Q1, and, acting upon the. upper end ot' the pistonVwill torce the saine downward to depress the head 26, through theintervention ot the piston rod llrhen the head 2G hasl reached the lowerlimit ot its move ment the finger 38 will engage the left hand end oi"the rocker arm il? and depress the. saine, eleifating the, opposite endot the rocher arni. and consequently lifting,f the stop and rod 32 toreturn the ll-valve to its original or upper position. 'lhereupon steamis admitted to the lower end ot the lll@ illlti isoaaae cylinder throughthe port 41, and the piston is elevated to the position shown in thedrawing, the steam in the upper end of the cylinder escapingthrough theport 42, the interior of the D-valve, and the exhaust port 43. Theupward movement of the piston 22 is limited by an abutment 44 whichdepends from the head of ythe cylinder and is surrounded by a spring 44awhich, vwhen relaxed, extends below the abutment 'and serves togradually retard the speed of the piston and cushion its blow againstthe abutment. The parts will remain in this position until fthe operatoragain manually operates the valve 31.

It is obvious that pedal operated mechanism may be connected tothe rod32, so that the attendant may actuate the valve 31 by foot power, if itis-so desired. Such a modification or addition is so obvious, however,that it is deemed unnecessary to'illustrate it.

45 represents a rotatable table, shown herein as provided with fourwork-supporting faces or portions 46, such faces or port-ionsbeingspaced at equal distances apart about the table. Gudgeons 47 extend fromthe ends of the table and are journaled in bosses 48 of the endframes 1. Fixed to each of its ends and forming a part of the table 4.5is a disk 50 within which are journaled the reduced ends of shafts 51that are located one Within the space between adjacent faces 46 of thetable.

4Carried by each of the shafts 51 is a plurality of clamping devicescomprising cach a bifurcated head 52 and a threaded shank 53, thev headand shank being disposed-at substantially right angles to each other.The shaft '51 isprovided with an aperture for the reception of the shankof each of thel clamping devices, the shank being adjustahly locked orsecured within the aperture of the shaft by nuts 54. located on oppositesides of the shaft. A bearing plate 55 is pivoted between the forks ofthe bifurcated head 52 of each clamping device, for a purpose which willbe explained hereinafter.

The reduced left hand ends of the shafts extend through and beyond thecorresponding disk-50, and have secured to them cams 57 (see Figs. 4 to7). A disk 58 is looselyr journaled upon the left hand gudgeon 47 of thetable adjacent the cams 57, and said disk is provided with a lateralcircumferential lange 59 wherewith the cams 57 are adapted to coperate.The disk has also a peripheral lug 60 which projects toward the front ofthe machine. Adapted to engage this lug and oscillatethe disk 58 is arod 61 which is adjustably carried by an extension 62 of the head 26. 63is a stationary disk which is located in juxtaposition to thel disk 58.and is fixed, in any suitable 'hand gudgeon 47 of the table 45 is afourtoothed ratchet 70 wherewith is adapted to coperate a pawl 71,actuated by a spring 72. The pawl and spring are carried by a segmentalplate 73 that is journaled upon the gudgeon of the table next to theratchet 70. This plate is connected to the adjacent end of the head 26of the machine, through a link 74. tTherefore', upon each reciprocationof the head 26, the plate will be os'- cillated to carry the pawl 71from one tooth of the ratchet 7 0 to the next adjacent tooth. and rotatethe ratchet, and consequently the table, through 900. A sprocket wheel 7js secured to the gudgeon 47 between the segmental plate 73 and theadjacent disk 50. rlhe purpose 0f this sprocket wheel will be explainedpresently.

AThe left hand disk 50 is provided with four peripheral teeth 76 forcooperation with the free end of a detent pawl 77 that is pivoted at itsupper end to a bracket 78, carried by the beam 5. The pawl is movedtoward the disk by a spring 79 that surrounds the screw 80 which passesthrough an opening in the pawl and is threaded into the rear side of thebeam 5, the spring 79 being confined between a washer 8l that bearsagainst the head of the screw, and the opposed surface of the pawl.

The ends of a shaft 82 are journaled within the upper ends of thestandards 16, and' immediately inside the right hand standard. the shafthas secured to it a sprocket wheel 83 over which a sprocket chain 84passes, the chain embracing also the previously mentioned sprocket wheel7 5 that is carried by the right hand gudgeon of the table. Between thesprocket Wheel 83 and the opposite end of the shaft 82, there aredistributed along the shaft, sprocket wheels 85. These sprocket wheelsare fastened to the shaft in any suitable manner. A shaft 86 is locatedwithin the bottom of the tank A.

and has its ends journaled within bosses 87 of the frames 1. This shaftis also equipped with s rocket wheels 88, corresponding in num er, pitchand spacing to the sprocket wheels 85 of the shaft 82. Chains 90 `areentrained about the corresponding sprocket wheels 85 and 88 of theshafts 82 and 86, respectively, and these chains contain links havingextensions 91, the chains thereby constituting' conveyers for articlesthat are dropped from the table into the lower portion of the tank andde- Heet toward the chains or conveyors by the inclined plate 92 thatextends inward and downward from the front wall of the tank.

1t will be observed that the cross section of the table 45 adjacent eachof its portions 46 is dove-tail in shape. This enables a templet which Iwill now describe to be conveniently clamped to eachV face of the table.Each templet is built upon a base 95, having its underneath surfacegrooved longitudinally, and undercut at the rearto form an overmangingrail 96 while the extension formed on the opposite side of the base isat substantially right angles to the top wall of the groove andconstitutes a straight flange 97. This ange has a number of threadedopenings for the reception of set screws 98 that are provided withtapered or pointed ends. Therefore, when the base is placed upon one ofthe Jfaces of the table and the screws are set in against the adjacentedge thereof, their tapered ends engage the re.- ceding side of thedove-tailed portion of the table, in much the same manner as theundercut rail 96 engages the opposite side thereof, and securelyconnects the base .to the table.

The front and rear sides of the base are rabbeted along their upperedges, as shown at 99. Each end is straddled by a L1-shaped stirrup 100,each parallel branch of which is connected to the base by a screw 101. Abolt 102 extends across the stirrup and through its parallel branches,4adjacent its upper end. A series of jack screws 103 are threaded intothe upper side oit' the base and are spaced at convenient distancesapart longitudinally thereof, and these jack screws have swiveled totheir upper ends, a flexible plate 104.-. At substantially the center ofthe base, an index post 105, having a squared portion 120 above andbelow which the post l5 is threaded, is screwed into the base, andconstitutes in e'ect, a jack screw for the adjacent portion of the plate1011.

A nut 106 is applied to the threads of the post 105 above its aforesaidsquared portion for a purpose which will presently be explained. Theupper ends of the jack screws are formed with tapered heads 108, asclearly shown. in Fig. 17. This forms a permanent but variableconnection between the plate and each screw which permits, by reason ofthe elongation of the slot, a longitudinal movement of the plate alongthe head of the screw.

' This construction allows the plate 101 to be bent into any shapedesired by the adjustment of the jack screws. For instance, the ends ofthe plate may be drawn downward to a plane below the portions susvtained yby the next adjacent jaclr screws, while the center of the platemay' remain in the position shown, there-by rendering the plate of acompound curvature.

Adapted to be distributed along the plate 101, are a number of bearingblocks 110, the bottom sides of which correspond in shape to thebottompf the base 95 previously described. As a consequence thereof,each block has an undercut tooth 111 at one end, and a strai ht tooth112 at the other. The latter tooth ias a threaded opening 113 for thereception of a set screw 114, having a tapered end, as shown at 115. Thebearing surface of each block is curved transversely, as shown at 116,and between the ends thereof, the block is cut away at 11? for a reasonthat will be set forth in the description of the tempering operation.

1n Fig. 16 there is shown a bearing block which dili'ers from the oneabove described by having tapered extensions 118,` that rise from theouter sides of the bearing surface 119. This form of block is designated1105i. The blocks 110 and 110 may be distributed along the plate-104Clin positions to suit' the requirements of the particular piece of workthat is to be performed, and clamped thereto by the set screws 114:, thescrews entering beneaththe adjacent edge of the plate and formingaconnection therewith, similar to that formed by the undercut tooth 111oit the opposite end of the bearing block. This connection enalbles anyone of the blocks' to be removed entirely independently of the others bysimply unscrewing the screw until the point is withdrawn from beneaththe plate when the block may be tilted upward and ackward and itsundercut tooth re leased from the rear edge of the plate. As previouslymentioned, the extensions 118 ot the blocks 110l are for engagement withthe edges of the spring plate that is to be formed, the same acting tostraighten the spring longitudinally while it is being cambered.Comparatively few of the blocks 1101` are required for the straighteningot the plates. When the templet is constructed as illustrated in Figs.11 to 14, the nut 106, on the index post '105, is threaded down tocontact with the adjacent blocks 110 and firmly hold the centralportionof the plate 1021 in contact with the squared portion 120 of the post.

Templets of the shape illustrated in Figs. 11 to 11 are shown asclampedl to the :faces 46 of the table 45. These templets may be said tobe concaved, and a complementary or convexed templet of precisely thesame construction is secured tothe dove-tailed por-` tion 125 oi' thehead 26. j

llt will be observed in F ig. 1, that intervals or spaces are lettbetween groups ont bearing blocks of the upper o r convened templet, forthe passage of the clamping :escasas devices, to which the referencenumeral 52 is applied. lt will be mentioned, in this same connection,that the shafts 51, which carry the clamping devices, are rotated in adirection to retain the clamping devices in inedective position, bysprings 126, each of which springs has one of its ends connected to a 4pin extending from the side of the shaft 51, and its opposite endconnected to a convenient-part of the table 45.

lin Figs. 1, 2 and 3, the springs upon which the machine is operatingare designated S and comprise each a leaf having an eye formed at eachend. As they are introduced into the machine they are practicallystraight, and are, as usual, provided with a central aperture which maybe placed over the index post 105. By this means, and by the engagementof each of its side edges with the extensions 118 of the bearing blocks110, the spring is properly positioned with respect to the templet.

For the purpose of tempering the springs, the tank A is filled with asuitable solution or oil to about the level of the dotted line It willbe understood, of course, that ordinary cooling coils, etc., may beemployed in connection with the tank.

ln describing the operation of the machine, it will be assumed that aspring, heated to a proper degree for tempering, has been placed uponthe upper templet of the table. The operator now draws down on theoperating handle 33 to actuate the ID- valve 31 and introduce steam intothe upper endof the cylinder 21. Thereupon, the piston descends anddepresses the head 26, to present the upper templet to the spring andshape the same to conform to the lower templet. Upon thedescent ot thehead the rod 61 thereof engages the lug 60 of the disk 58 and rotatesthe disk so that the upper end of the ilange 59 engages one of the cams57 and oscillates the corresponding shaft 51 to move the clampingdevices 52 over and against the sprin that is confined between thetemplets. %hen overridden by the Harige 59, the cam 57 is retained inthe position to which it has been rocked, and against the action of thespring 126, until the cam escapes from within the opposite end of theHange. Therefore, as the head 26 returns to its upper position andwithdraws its templet from the spring, the spring will be retained incontact with the templet of the table. Upon the rise ot the head 26, thesector plate 73 is oscillated by the link 74 which connects said plateto the head. Through the paw] 71, the ratchet 7 0, that is keyed to thegudgeon of the table, is rotated through 90, thereby rotating the tablea corresponding distance, or until the next templet thereof is resentedin proper operetive relation to t e templet of the head.

The disk 58, by reason of the frictional enc5 gagement of its flangewith the cams 57, is restored to its former position when the table isthus rotated,

It will be recalled that the only exertion on the part of the attendantnecessary to perform the operation above described is the pulling downof the operatin handle 33, the linger 38 that is carried by t e pistonrod, the rocker arm 37, and the stop 35 that is attached to the valverod 32, acting to 75 move the valve to its original position, whichresults in the reversal of the motor and thek completion of theoperation above described.

Another spring may now be placed in the machine, and the foregoingoperation repeated.v The spring previously cambered, being submergedwithin the liquid contained in the tank A, is cooled and temperedthereby. The spring continues to ride upon the templetof the table untilthe cam on the end of the shaft which carries its clamping def vices,escapes from beneath the flange 59 ot' the disk 58,v and allows thespring 126 to.; rock the shaft 51 and remove the clamping 90 devicesfrom the spring. With the parts as illustrated, this releasing occursbetween the lower and front positions of the templet. When the spring isreleased, it is deflected rearwardly by the plate 92 and lodges upon 95the conveyer chains 90. As previously explained, these conveyer chainsare carried by sprockets 85 that are fastenedfto the shaft 82, which4shaft is driven through the sprocket wheel 83, chain 84, and thesprocket wheel 75, from the rotatable table 415. The springs are ejectedfrom the rear end of the machine complete in so far as the cambering andtempering operations are concerned. i

l have already explained that the central portions of the bearing blocksand 110m are cut away at 117. This is to allow access of the temperingsolution to a greater area of the surface of the spring than would 110otherwise be possible.

Having thus described my invention, what I claim is z- 1. lin a machineof the character set forth, the combination of a rotatable table havinga plurality of angularly disposed templets, a .head movable toward andfrom the table and having a templet complementary to the templets of thetable, mechanism for moving the head, connections between the head andtable whereby the movement of the ,head will rotate the table tosuccessively present its respective templets in operative relation tothe templet of the head, clamping devices carried by the table andadapted for holding articles on the templets thereof, after the headrecedes, a member carried by the head, and mechanism engaged andactuoperative relation to the templet of the` head, a shaft rotatablysupported by the table adjacent each of its templets, a clampingv devicecarried by each shaft and adapted for holding anv article. on thevadjacent templet, the shaft having an offset/,a member rotatable uponsubstantially the sam"e axis. as the table, said member having asegmental guide that -issubstantially concentric to the rotating axis ofsaid member for engagement by the odset of each of the aforesaid shafts,and means for rotating said member upon the depression of the head tocause its aforesaid guide portion to engage the odset of one of theshafts and rock the same in a direction to move the clampin device thatis carried by said shaft to edective position.

' 3. lin a machine of the character set forth,

the combination of a rotatable table havinga plurality of angularlydisposed templets, a head movable toward and from the table and having ateinplet complementary to the templets of the table, mechanism formoving the head, connections between the head and table whereby themovement of the head will rotate the table to successively present itsrespective templets in operative relation to the templet of the head, ashaft rotatably supported by the table adjacent each of its templets, aclamping device carried by each shaft and adapted for holding an articleon the adjacent templet, the shaft having an odset, a member rotatableupon substantially the same axis as the table, said member having asegmental guide that is substantially concentric to the rotating axis ofsaid member for engagement by the offset of each of the aforesaidshafts, the head and said member having coperating portions whereby saidmember is rotated upon the depression o f the head t0 cause itsaforesaid guide portion to engage the offset of oneof the shafts androckthe same in a direction to move the clampingl device that is carried bysaid shaft to ed'ective position, and means for returning the shaft tonormal position when the odset portion thereof escapes from the guideportion of the aforesaid member.

d. In a 1nachine of the character set forth. the combination of arotatable table having a plurality of angularly disposed templets.

hafts rotatably supported by said table,

one between adjacent templets, a clampingA isoaaae device carried byeach shaft and adapted for holding articles on one of the adjacenttemplets, means tending to retain the shafts in normal position, a camcarried by each shaft, a member rotatable substantially upon therotating axis of the table and having a segmental guide that issubstantially concentric to the rotating axis of said member, a headmovable toward and from the table and havinga templet complementary tothe templets of the table, and mechanism for moving the head and tableto successively present the respective templets of the table inoperative relation to the teinpl'et of the head, the head and aforesaidrotatable member having ortions which coperate to rotate said mem erupon the descent of the head thereby to move the guide portion of saidmember into engagement with and cause such portion to-override the camsof the respective shafts successively as the table is turned, for thepurpose of rocking the shafts in a direction to move the aforesaidclamping devices to edective position.

5. ln a machine of the character set forth, the combination of a movableelement having a plurality of templets, a. head movable toward and fromthe element, and having a templet complementary to the tem lets of saidelement, mechanism for moving o the head and element t0 successivelypresent the respective templets of the element in operative relation tothe templet of the head, and means actuated by the head for clampingarticles to the templets of the element.

6. ln a machine 'of the character set forth` the combination of a table,a templet carried thereby, a head movable toward and from said table andhavingl a templet complementary to the templet of the table, the tablebeing movable to shift its templet from op-l erative .relation to thetemplet of the head, mechanism for moving the head, and means actuatedby the movement of the head for clamping articles to the rst mentionedtemplet and to retain them during the movement of the'table. v

7i An adjustable spring forming templet i comprising a base, a flexiblesupporting member, a plurality of jack screws threaded into the base andhaving heads that are swiveled in the HeXible member, and a series ofbearing blocks carried by the supporting member, certain of said bearingblocks having extensions which project beyond their bearing surfaces andthe opposed faces of which diverge away from the bearing surfaces, saidextensions being arranged to engage the lateral edges of the springs,thereby to correct any transverse deforimty of the spring.

8. A templet comprising a plate having p arallel side edges in planes atsubstantially right angles to its top surface, a series of bear-inblocks for application thereto. each block avving opposed teeth, oneadjacent each end of the block, one of said teeth being undercut 0n anoblique angle to embrace one edge ofthe plate, and a screw threadedthrough the other tooth and having a tapered end for engagement beneathl@he opposite edge of the plate.

9. A templet comprising a plate and a series of bearing blocks carriedby said plate, certain of said blocks having extensions which projectbeyond their bearing surfaces and the opposed faces of which diverge.away from the bearing surfaces, said extensions being arranged to engage15 the edges of the obJeCt to be formed and thereby act upon the Same ina plane at right angles to that in which the bearing surfaces act uponthe object.

In testimony whereof, l hereunto afx my 20 signature in the presence oftWo Witnesses.

CHARLES F. seHULris.

Witnesses:

ROBERT L. BRUGK, HUGH B. MGGIH..

